RESIDUE QUZ 16 CONECT C01 3 C02 C10 H01 CONECT C02 3 C01 C03 H02 CONECT C03 3 C02 C04 H03 CONECT C04 3 C03 N05 C09 CONECT N05 2 C04 C06 CONECT C06 3 N05 N07 H06 CONECT N07 2 C06 C08 CONECT C08 3 N07 C09 H08 CONECT C09 3 C04 C08 C10 CONECT C10 3 C01 C09 H10 CONECT H01 1 C01 CONECT H02 1 C02 CONECT H03 1 C03 CONECT H06 1 C06 CONECT H08 1 C08 CONECT H10 1 C10 END HET QUZ 16 HETNAM QUZ quinazoline FORMUL QUZ C8 H6 N2